user/sven/linux.git/drivers/ufs, branch next/master

scsi: ufs: core: Disable timestamp for Kioxia THGJFJT0E25BAIP

2026-04-09T02:27:16Z

Kioxia has another product that does not support the qTimestamp attribute. Signed-off-by: Aaron Kling Reviewed-by: Bart Van Assche Link: https://patch.msgid.link/20260403-thgjfjt0e25baip-no-timestamp-v1-1-1ddb34225133@gmail.com Signed-off-by: Martin K. Petersen

scsi: ufs: core: Make the header files self-contained

2026-04-03T01:26:44Z

Add the include directives and forward declarations that are missing from the UFS core header files. This prevents compilation failures if include directives are reordered. Signed-off-by: Bart Van Assche Link: https://patch.msgid.link/20260401202506.1445324-4-bvanassche@acm.org Signed-off-by: Martin K. Petersen

scsi: ufs: core: Remove an include directive from ufshcd-crypto.h

2026-04-03T01:26:44Z

Nothing in the ufshcd-crypto.h header file depends on the ufshcd-priv.h header file. Hence, stop including that header file. This include directive was introduced by commit 4bc26113c603 ("scsi: ufs: Split the ufshcd.h header file"). Signed-off-by: Bart Van Assche Link: https://patch.msgid.link/20260401202506.1445324-3-bvanassche@acm.org Signed-off-by: Martin K. Petersen

scsi: ufs: core: Add a comment block above ufshcd_mcq_compl_all_cqes_lock()

2026-04-03T01:26:44Z

Document the aspects of ufshcd_mcq_compl_all_cqes_lock() that are nontrivial in a comment block above this function. Signed-off-by: Bart Van Assche Reviewed-by: Peter Wang Link: https://patch.msgid.link/20260401202506.1445324-2-bvanassche@acm.org Signed-off-by: Martin K. Petersen

scsi: ufs: ufs-qcom: Fix spelling mistake "retore" -> "restore"

2026-04-03T01:15:21Z

There is a spelling mistake in a dev_err() message. Fix it. Signed-off-by: Colin Ian King Reviewed-by: Manivannan Sadhasivam Link: https://patch.msgid.link/20260331153049.1344957-1-colin.i.king@gmail.com Signed-off-by: Martin K. Petersen

Merge branch 7.0/scsi-fixes into 7.1/scsi-staging

2026-04-03T00:31:22Z

Pull in fixes to resolve mpi3mr merge conflict. Signed-off-by: Martin K. Petersen

Merge patch series "scsi: ufs: Add TX Equalization support for UFS 5.0"

2026-03-27T21:21:28Z

Can Guo says: Hi, The UFS v5.0 and UFSHCI v5.0 standards have published, introducing support for HS-G6 (46.6 Gbps per lane) through the new UniPro V3.0 interconnect layer and M-PHY V6.0 physical layer specifications. To achieve reliable operation at these higher speeds, UniPro V3.0 introduces TX Equalization and Pre-Coding mechanisms that are essential for signal integrity. This patch series implements TX Equalization support in the UFS core driver as specified in UFSHCI v5.0, along with the necessary vendor operations and a reference implementation for Qualcomm UFS host controllers. Background ========== TX Equalization is a signal conditioning technique that compensates for channel impairments at high data rates (HS-G4 through HS-G6). It works by adjusting two key parameters: - PreShoot: Pre-emphasis applied before the main signal transition - DeEmphasis: De-emphasis applied after the main signal transition UniPro V3.0 defines TX Equalization Training (EQTR) procedure to automatically discover optimal TX Equalization settings. The EQTR procedure: 1. Starts from the most reliable link state (HS-G1) 2. Iterates through all possible PreShoot and DeEmphasis combinations 3. Evaluates signal quality using Figure of Merit (FOM) measurements 4. Selects the best settings for both host and device TX lanes For HS-G6, Pre-Coding is also introduced to further improve signal quality. Pre-Coding must be enabled on both transmitter and receiver when the RX_FOM indicates it is required. Implementation Overview ======================= The implementation follows the UFSHCI v5.0 specification and consists of: Core Infrastructure (Patches 1-6): - New vops callback negotiate_pwr_mode() to allow vendors to negotiate power mode parameters before applying TX Equalization settings - Support for HS-G6 gear enumeration - Complete TX EQTR procedure implementation in ufs-txeq.c - Debugfs interface for TX Equalization parameter inspection and manual retraining - Module parameters for adaptive TX Equalization control Qualcomm Implementation (Patches 7-11): - PHY-specific configurations for TX EQTR procedure - Vendor-specific FOM measurement support - TX Equalization settings application - Enable TX Equalization for HW version 0x7 and onwards The implementation is designed to be vendor-agnostic, with platform- specific details handled through the vops callbacks. Other vendors can add support by implementing the three new vops: - tx_eqtr_notify(): Called before/after TX EQTR for vendor setup - apply_tx_eqtr_settings(): Apply vendor-specific PHY configurations - get_rx_fom(): Retrieve vendor-specific FOM measurements if needed Module Parameters ================= The implementation provides several module parameters for flexibility: - use_adaptive_txeq: Enable/disable adaptive TX Equalization (default: false) - adaptive_txeq_gear: Minimum gear for adaptive TX EQ (default: HS-G6) - use_txeq_presets: Use only the 8 standaird presets (default: false) - txeq_presets_selected[]: Select specific presets for EQTR Testing ======= This patch series has been tested on Qualcomm platforms with UFS 5.0 devices, validating: - Successful TX EQTR completion for HS-G6 - Proper FOM evaluation and optimal settings selection - Pre-Coding enablement for HS-G6 - Power mode changes with TX Equalization settings applied - Report of TX Equalization settings via debugfs entries - Report of TX EQTR histories via debug entries (see next section) - Re-training TX Equalization via debugfs entry Example of TX EQTR history ========================== Device TX EQTR record summary - Target Power Mode: HS-G6, Rate-B Most recent record index: 2 Most recent record timestamp: 219573378 us TX Lane 0 FOM - PreShoot\DeEmphasis \ 0 1 2 3 4 5 6 7 0 50 70 65 - - - - x 1 x x x x x x x x 2 100 90 70 - - - - x 3 x x x x x x x x 4 95 90 - - - - - x 5 - - - - - - - x 6 x x x x x x x x 7 x x x x x x x x TX Lane 1 FOM - PreShoot\DeEmphasis \ 0 1 2 3 4 5 6 7 0 50 70 60 - - - - x 1 x x x x x x x x 2 100 80 65 - - - - x 3 x x x x x x x x 4 95 85 - - - - - x 5 - - - - - - - x 6 x x x x x x x x 7 x x x x x x x x Patch Structure =============== Patches 1-3: Preparatory changes for power mode negotiation and HS-G6 Patch 4: Core TX Equalization and EQTR implementation Patches 5-7: Debugfs support for TX Equalization Patches 8-12: Qualcomm vendor implementation Next ==== One more series has been developed to enhance TX Equalization support, which will be submitted for review after this series is accepted: - Provide board specific (static) TX Equalization settings from DTS - Parse static TX Equalization settings from DTS if provided - Apply static TX Equalization settings if use_adaptive_txeq is disabled - Add support for UFS v5.0 attributes qTxEQGnSettings & wTxEQGnSettingsExt - Enable persistent storage and retrieval of optimal TX Equalization settings Link: https://patch.msgid.link/20260325152154.1604082-1-can.guo@oss.qualcomm.com Signed-off-by: Martin K. Petersen

scsi: ufs: ufs-qcom: Enable TX Equalization

2026-03-27T21:20:30Z

Enable TX Equalization for hosts with HW version 0x7 and onwards. Reviewed-by: Bean Huo Reviewed-by: Bart Van Assche Signed-off-by: Can Guo Reviewed-by: Peter Wang Link: https://patch.msgid.link/20260325152154.1604082-13-can.guo@oss.qualcomm.com Signed-off-by: Martin K. Petersen

scsi: ufs: ufs-qcom: Implement vops apply_tx_eqtr_settings()

2026-03-27T21:20:30Z

On some platforms, when Host Software triggers TX Equalization Training, HW does not take TX EQTR settings programmed in PA_TxEQTRSetting, instead HW takes TX EQTR settings from PA_TxEQG1Setting. Implement vops apply_tx_eqtr_setting() to work around it by programming TX EQTR settings to PA_TxEQG1Setting during TX EQTR procedure. Reviewed-by: Bean Huo Reviewed-by: Bart Van Assche Signed-off-by: Can Guo Reviewed-by: Peter Wang Link: https://patch.msgid.link/20260325152154.1604082-12-can.guo@oss.qualcomm.com Signed-off-by: Martin K. Petersen

scsi: ufs: ufs-qcom: Implement vops get_rx_fom()

2026-03-27T21:20:30Z

On some platforms, host's M-PHY RX_FOM Attribute always reads 0, meaning SW cannot rely on Figure of Merit (FOM) to identify the optimal TX Equalization settings for device's TX Lanes. Implement the vops ufs_qcom_get_rx_fom() such that SW can utilize the UFS Eye Opening Monitor (EOM) to evaluate the TX Equalization settings for device's TX Lanes. Reviewed-by: Bean Huo Reviewed-by: Bart Van Assche Signed-off-by: Can Guo Reviewed-by: Peter Wang Link: https://patch.msgid.link/20260325152154.1604082-11-can.guo@oss.qualcomm.com Signed-off-by: Martin K. Petersen